Effects of Integrated Use of Fertilizers and Manure on Yield and Nutrient Uptake of T.Aus Rice and Mungbean in the Wheat-T.Aus Rice/Mungbean-T.Aman Rice Cropping Pattern

Abstract

An experiment was carried out at the Bangladesh Agricultural University (BAU) Farm, Mymensingh from rabi season of 1999 to kharif-II season of 2002 in the Old Brahmaputra Floodplain Soils (AEZ 9, Aeric Haplaquept) of Bangladesh to investigate the effect of integrated use of organic and inorganic fertilizers on yield and nutrient uptake of T.Aus rice and mungbean in the Wheat-T.  Aus/Mungbean-T.Aman cropping pattern. There were four treatments for wheat- T₁: Control, T₂: NPKSZnB (MYG), T₃: NPKSZnB (HYG) and T₄: NPKSZnB (MYG) + CD. The nutrient rates for four treatments of wheat were N₀P₀K₀S₀Zn₀B₀ kg/ha for T₁, N₈₀P₂₀K₅₀S₁₀Zn₁B₁ kg/ha for T₂, N₁₂₀P₃₀K₇₅S₁₅Zn₂B₂ kg/ha for T₃ and N₈₀P₂₀K₅₀S₁₀Zn₁B₁ kg/ha + CD (5 t/ha) for T₄. In T. Aus/Mungbean one-third plot of each treatment was cultivated by T. Aus rice and the rest two-thirds plot by mungbean. The rates of N, P, K, and S for  T. Aus rice were, respectively, 60, 12, 32 and 5 kg/ha for MYG, and 90, 18, 48 and 7.5 kg/ha for HYG. The corresponding rates of P, K, and S for mungbean were 10, 13, and 5 kg/ha for average yield goal (AYG). The results showed that grain (3.46 t/ha) and straw yields (5.19 t/ha) of T. Aus rice increased significantly due to application of fertilizers. The highest mean seed yield of 0.56 t/ha and stover yield of 1.99 t/ha in mungbean were obtained from PKS plus inoculum plus residual NPKSZnB for HYG treatment. The N, P, K, S, Zn, and B uptake by T.Aus/Mungbean remarkably increased with increasing supply of nutrients. The highest uptake of N, P, K, S, Zn, and B by the crops was noted in the treatment T3  that received HYG fertilizers in T. Aus rice. The removal of N ranged from 27.3 to 63.2 kg/ha and 29.8 to 48.1 kg/ha, P from 5.62 to 15.80 kg/ha and 2.60 to 4.69 kg/ha, K from 35.8 to 71.8 kg/ha and 21.9 to 37.4 kg/ha, S from 4.08 to 10.26 kg/ha and 2.12 to 4.11 kg/ha, Zn from 44 to 132 g/ha and 56 to 101 g/ha, B from 17 to 70 g/ha and 7 to 16 g/ha by T.Aus rice and mungbean, respectively.  Application of cowdung along with chemical fertilizers resulted in markedly higher uptake of nutrients. The application of NPKS (HYG) fertilizers remarkably increased the crop yield. The lowest grain yield and the lowest nutrient uptake were noted in control plots receiving no fertilizer or manure.

DOI: http://dx.doi.org/10.3329/bjar.v36i4.11760

Bangladesh J. Agril. Res. 36(4): 685-695, December 2011